From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo via "Bug reports for GNU Emacs, the Swiss army knife of text editors" Newsgroups: gmane.emacs.bugs Subject: bug#46256: [feature/native-comp] AOT eln files ignored if run from build tree Date: Sun, 07 Mar 2021 19:05:18 +0000 Message-ID: References: <83h7lpy7b7.fsf@gnu.org> <83blbxxwuj.fsf@gnu.org> <83a6rgwdmr.fsf@gnu.org> <835z24wb0s.fsf@gnu.org> <83y2f0uqcd.fsf@gnu.org> <83im64unhs.fsf@gnu.org> <834khouj1z.fsf@gnu.org> <831rcsuhqm.fsf@gnu.org> <83y2eztsm5.fsf@gnu.org> <83im63tnrz.fsf@gnu.org> Reply-To: Andrea Corallo Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="4074"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: 46256@debbugs.gnu.org, andrewjmoreton@gmail.com, pipcet@gmail.com To: Eli Zaretskii Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Mar 07 20:06:09 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lIyjB-0000xc-CX for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 20:06:09 +0100 Original-Received: from localhost ([::1]:55762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lIyjA-0004Lt-Dn for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 07 Mar 2021 14:06:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45584) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lIyj4-0004KV-TC for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 14:06:02 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:58202) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lIyj4-0001ht-Lf for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 14:06:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lIyj4-0005xy-G0 for bug-gnu-emacs@gnu.org; Sun, 07 Mar 2021 14:06:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Andrea Corallo Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 07 Mar 2021 19:06:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 46256 X-GNU-PR-Package: emacs Original-Received: via spool by 46256-submit@debbugs.gnu.org id=B46256.161514392322887 (code B ref 46256); Sun, 07 Mar 2021 19:06:02 +0000 Original-Received: (at 46256) by debbugs.gnu.org; 7 Mar 2021 19:05:23 +0000 Original-Received: from localhost ([127.0.0.1]:41515 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIyiR-0005x5-Eh for submit@debbugs.gnu.org; Sun, 07 Mar 2021 14:05:23 -0500 Original-Received: from mx.sdf.org ([205.166.94.24]:51099) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lIyiO-0005wu-Pu for 46256@debbugs.gnu.org; Sun, 07 Mar 2021 14:05:22 -0500 Original-Received: from mab (ma.sdf.org [205.166.94.33]) by mx.sdf.org (8.15.2/8.14.5) with ESMTPS id 127J5IUo017553 (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits) verified NO); Sun, 7 Mar 2021 19:05:18 GMT In-Reply-To: <83im63tnrz.fsf@gnu.org> (Eli Zaretskii's message of "Sun, 07 Mar 2021 09:40:16 +0200") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:201763 Archived-At: Eli Zaretskii writes: >> From: Andrea Corallo >> Cc: pipcet@gmail.com, 46256@debbugs.gnu.org, andrewjmoreton@gmail.com >> Date: Sun, 07 Mar 2021 06:57:24 +0000 >> >> > Another idea I had related to this: since there seem to be stability >> > issues with even the recent versions of libgccjit, we should perhaps >> > automatically add a .el file whose native-compilation failed to the >> > list in comp-deferred-compilation-deny-list, so that the same Emacs >> > session won't try native-compilation of the same .el file again. >> > WDYT? >> >> Sounds good, will do. > > Thanks. > >> > (Btw, the "deferred" part in the name of the variable sounds redundant >> > to me, since we always compile asynchronously, except during >> > bootstrap, which has a separate variable anyway.) >> >> Well we expose also `native-compile' to compile synchronously (IIRC >> that's also what package.el does if asked). > > I guess I'm confused: what's the difference between native-compile and > the deferred compilation? I though the deferred compilation just uses > native-compile. Or is there a different command for that? We have two API entries for native compilation: `native-compile' (synchronous) and `native-compile-async' (indeed asynchronous). Deferred compilation is the mechanism to trigger automatically an async native compilation (through `native-compile-async') for bytecodes being loaded when the native code is not present (+ have the hotswap performed when finished native compiling). >> > A data point: subr-x.elc is 16247 bytes, whereas the corresponding >> > .eln file (for 32-bit wide-int architecture) is 90631 bytes, a 5.5 >> > factor. >> > >> > If I look at the file with 'size', I get the following numbers: >> > >> > text data bss dec hex filename >> > 63951 788 24784 89523 15db3 subr-x-02dfef32-17faeb1d.eln >> >> What's the size of the corresponding .elc ? > > See above: 16247 bytes. Sorry for the sloppy answer this morning I was rushing :/ Looking at it my subr-x.eln is pretty much big the same (the factor depends on the single file). I believe in general bytecode is a more compact representation than native code. Andrea